Research the causes of related medical symptoms such as: 1  Eye. 2  Eye symptoms (5412 causes) 3  Eye disease. 4  Eye disorder. 5  Eye problem (5412 causes) 6  Eye pain (475 causes) 7  Itch (1068 causes) 8  more symptoms...Â».
How to read the Histogram. A histogram is a graphical representation of the pixels exposed in your image. The left side of the graph represents the blacks or shadows, the right side represents the highlights or bright areas and the middle section is mid-tones (middle or 18% grey).
If you want to create a histogram in Excel, you can use this sample input data. This embedded workbook shows the finished histogram. You can create the histogram yourself by copying cells A1:B11 and pasting them into cell A1 in a new worksheet.ake sure you load the Analysis ToolPak to add the Data Analysis command to the Data tab. Then youâll be ready to create a histogram. Hereâs how: On a worksheet, type the input data in one column, adding a label in the first cell if you want. Be sure to use quantitative numeric data, like item amounts or test scores.